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The Cusco rear differential carrier secures and reinforces the rear differential assembly to reduce movement and sharpen drivetrain response on turbo Subaru platforms. It is produced for WRX and STi variants including STi GRB/GVB/VAB, WRX VAG, and Forester SJ5/SJG applications, offering a direct-fit upgrade to tighten rear-end feel and support performance-oriented driving without altering core differential function.
Cusco Subaru STi GRB/GVB/VAB/(WRX) VAG/(Forester)SJ5 & SJG Rear Differential Carrier
